Meaning: An object that is thrown or propelled.

Part of speech: noun

Example: The projectile flew through the air before hitting the target.

Category: Science › Physics

Synonyms: missile

Meaning: To increase rapidly in number.

Part of speech: verb

Example: The number of smartphones has proliferated in recent years.

Category: Science

Synonyms: multiply

Meaning: a type of gas used for heating and cooking

Part of speech: noun

Example: We use propane for our grill.

Category: Science › Chemistry

Synonyms:

• gas
• fuel

Meaning: a substance that propels something

Part of speech: noun

Example: The rocket uses a powerful propellant.

Category: Science › Physics

Synonyms:

• fuel
• driving force

Meaning: A positively charged particle found in the nucleus of an atom.

Part of speech: noun

Example: A proton is one of the building blocks of matter.

Category: Science › Physics

Synonyms: nuclear particle

Meaning: A single-celled organism that can be either free-living or parasitic.

Part of speech: noun

Example: A protozoan can be found in various environments, including water.

Category: Science › Biology

Synonyms:

• microorganism
• single-celled organism

Meaning: To demonstrate the truth or existence of something.

Part of speech: verb

Example: He tried to prove his theory with experiments.

Category: Science › Research

Synonyms:

• demonstrate
• establish

Antonyms:

• disprove
• refute

Meaning: Demonstrated to be true or valid.

Part of speech: adjective

Example: The method has been proven effective in studies.

Category: Science › Research

Synonyms:

• established
• verified

Antonyms:

• unproven
• disputed

Meaning: Not genuine; false or deceptive.

Part of speech: adjective

Example: The pseudo-scientific claims were debunked.

Category: Science › Philosophy

Synonyms:

• fake
• false

Antonyms:

• genuine
• authentic

Meaning: The ability to move objects with the mind without physical interaction.

Part of speech: noun

Example: Many stories in science fiction explore the concept of psychokinesis.

Category: Science › Parapsychology

Synonyms: telekinesis

Meaning: To expand or swell.

Part of speech: phrasal verb

Example: The balloon began to puff out as air was added.

Category: Science

Synonyms:

• inflate
• expand

Meaning: A soft, wet mass of material, often used in making paper.

Part of speech: noun

Example: The pulp is processed to make paper.

Category: Science › Materials

Synonyms:

• mass
• slurry

Meaning: A highly magnetized rotating neutron star that emits beams of radiation.

Part of speech: noun

Example: The pulsar is a fascinating object in space.

Category: Science › Astronomy

Synonyms:

• star
• neutron star

Meaning: To expand and contract rhythmically.

Part of speech: verb

Example: The lights began to pulsate to the music.

Category: Science

Synonyms:

• throb
• beat

Meaning: a stage in the life cycle of some insects

Part of speech: noun

Example: The caterpillar turned into a pupa before becoming a butterfly.

Category: Science › Biology

Synonyms:

• chrysalis
• larva

Meaning: a substance used in buying processes

Part of speech: noun

Example: The purchasing powder is essential for the chemical reaction.

Category: Science › Chemistry

Meaning: not mixed with anything else

Part of speech: adjective

Example: She prefers pure water without any additives.

Category: Science › Chemistry

Synonyms:

• clean
• unmixed

Antonyms:

• impure
• contaminated

Meaning: to make something pure

Part of speech: verb

Example: They used a filter to purify the water.

Category: Science › Chemistry

Synonyms:

• clean
• refine

Antonyms:

• pollute
• contaminate

Meaning: the state of being pure

Part of speech: noun

Example: The purity of the water was tested.

Category: Science

Synonyms:

• cleanliness
• clarity

Antonyms:

• impurity
• contamination

Meaning: the process of decay or rotting

Part of speech: noun

Example: Putrefaction occurs when organic matter decomposes.

Category: Science › Biology

Synonyms:

• decay
• decomposition

Meaning: to cause to rot or decay

Part of speech: verb

Example: The food will putrefy if left out too long.

Category: Science › Biology

Synonyms:

• decay
• decompose

Meaning: having a foul smell due to decay

Part of speech: adjective

Example: The putrid smell of rotten eggs filled the room.

Category: Science › Biology

Synonyms:

• rotten
• decayed

Meaning: discrete quantities of energy or matter

Part of speech: noun

Example: Photons are considered quanta of light.

Category: Science › Physics

Meaning: to measure or express the quantity of something

Part of speech: verb

Example: It's difficult to quantify the impact of climate change.

Category: Science › Measurement

Synonyms: measure

Meaning: the smallest amount of a physical quantity

Part of speech: noun

Example: A quantum of energy can be absorbed by an electron.

Category: Science › Physics

Meaning: the branch of physics dealing with the behavior of matter and light on atomic and subatomic levels

Part of speech: noun

Example: Quantum mechanics explains the strange behavior of particles.

Category: Science › Physics

Meaning: the theoretical framework of quantum mechanics

Part of speech: noun

Example: Quantum theory has revolutionized our understanding of physics.

Category: Science › Physics

Meaning: a fundamental particle in physics

Part of speech: noun

Example: Quarks combine to form protons and neutrons.

Category: Science › Physics

Meaning: brightness or light emitted from a source

Part of speech: noun

Example: The radiance of the sun was blinding.

Category: Science › Physics

Synonyms: brightness

Meaning: to emit energy or light

Part of speech: verb

Example: The heater radiates warmth.

Category: Science › Physics

Synonyms: emit

Meaning: energy emitted in the form of waves or particles

Part of speech: noun

Example: Radiation can be harmful in large doses.

Category: Science › Physics

Synonyms: emission

Meaning: a prefix indicating something related to radio

Part of speech: prefix

Example: Radioactive materials are dangerous.

Category: Science

Meaning: the study of celestial objects using radio waves

Part of speech: noun

Example: Radio astronomy helps us understand the universe.

Category: Science › Astronomy

Meaning: a radioactive isotope of carbon used in dating

Part of speech: noun

Example: Radio carbon dating is used to determine the age of ancient artifacts.

Category: Science › Archaeology

Meaning: An instrument used to detect radio waves from astronomical objects.

Part of speech: noun

Example: The radio telescope discovered new pulsars in the galaxy.

Category: Science › Astronomy

Meaning: emitting radiation

Part of speech: adjective

Example: Radioactive waste must be handled carefully.

Category: Science › Physics

Synonyms: radiating

Meaning: A radioactive element used in some medical treatments and historically in luminous paints.

Part of speech: noun

Example: Radium was once used in watches to make them glow in the dark.

Category: Science › Chemistry

Meaning: A colorless, odorless gas that is radioactive and can be harmful in high concentrations.

Part of speech: noun

Example: Radon can accumulate in homes and pose health risks.

Category: Science › Chemistry

Meaning: Made, done, or happening without method or conscious decision.

Part of speech: adjective

Example: He picked a random number.

Category: Science

Synonyms:

• haphazard
• arbitrary

Antonyms:

• systematic
• planned

Meaning: To make something random or to arrange in a random order.

Part of speech: verb

Example: They decided to randomize the order of the questions.

Category: Science

Synonyms:

• shuffle
• mix